* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  max-width: 750px;
  min-width: 300px;
  background-color: #f2f2f2;
  font-size: 15px;
}

.box1 {
  width: 100%;
  display: flex;
  justify-content: space-between;
  background-color: white;
  height: 1rem;
  line-height: 1rem;
}

.box1-1 {
  color: aqua;
  font-size: .15rem;
}

.box2 {
  width: 100%;
  height: 1rem;
  font-size: .13rem;
  color: #666;
  margin: .1rem;
}

.box3 {
  width: 100%;
  height: 2.5rem;
  font-size: .15rem;
  background-color: white;
}

.box3 p {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

.box3 p .box3-1 {
  width: 30%;
}

.box3 p input {
  width: 60%;
  border: 0px;
}

.box3 p .box3-2 {
  width: 10%;
}

.box4 {
  margin-top: .2rem;
  width: 100%;
  text-align: center;
  font-size: .15rem;
  color: aqua;
}
